mobile network operator reports

should a mobile network operator be able to produce a report to show how much data was used via 3g/4g on their mobile network, for one of our staff, on certain days? We have received a larger bill than expected and want to determine which days their was lots of data usage - to determine if it was done in works time/legitimate. Should they be able to produce a report as granular as that? i.e. on 14/01/2015 XYZ MB of data was used.

Also - would they have the ability to include geodata in such a report, to show where the phone was in use on given days?

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